Nippon Rikagakuyakuhin Co. Ltd.

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Address: 2-2, Nihonbashi-Honcho 4-chome, Chuo-ku, Tokyo 103-0023, Japan
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Profile: Nippon Rikagakuyakuhin Co. Ltd. manufactures bulk pharmaceutical chemicals. We offer amino acids & derivatives, intermediates for medicines and investigational drugs. We also provide cystine, cysteine, tyrosine and serine.

6 Products/Chemicals (Click for related suppliers)

• L-Cysteine

IUPAC Name: (2R)-2-amino-3-sulfanylpropanoic acid | CAS Registry Number: 52-90-4
Synonyms: L-cysteine, cysteine, Thioserine, Cystein, Half-cystine, (R)-Cysteine, carbocysteine, Half cystine, acetylcysteine, Polycysteine, Cysteine, L-, Ecolan, L-(+)-Cysteine, beta-Mercaptoalanine, L Cysteine, Cisteinum [Latin], b-Mercaptoalanine, L-Cystein, L-Zystein, Cisteina [Spanish]

Molecular Formula:	C₃H₇NO₂S	Molecular Weight:	121.158180 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	3

InChIKey: XUJNEKJLAYXESH-REOHCLBHSA-N

• L-Cysteine Methylester HCl

IUPAC Name: [(2R)-1-methoxy-1-oxo-3-sulfanylpropan-2-yl]azanium chloride | CAS Registry Number: 18598-63-5
Synonyms: Chistait, Visclair, Acdrile, Jeorgen, Pectite, Actiol, Zeotin, Acthiol aerosol, Acthiol J, Actiol J, Epecoale hydrochloride, Mecysteine hydrochloride, C4H9NO2S.HCl, Methyl cysteine hydrochloride, Mecysteine (hydrochloride), Methyl L-cysteinate hydrochloride, EINECS 242-435-0, Methyl cysteine hydrochloride (VAN), NSC 161611, L.J. 48

Molecular Formula:	C₄H₁₀ClNO₂S	Molecular Weight:	171.645700 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	3

InChIKey: WHOHXJZQBJXAKL-DFWYDOINSA-N

• L-Cystine

IUPAC Name: (2R)-2-amino-3-[(2R)-2-amino-3-hydroxy-3-oxopropyl]disulfanylpropanoic acid | CAS Registry Number: 56-89-3
Synonyms: L-cystine, cystine, Cystine acid, L-Dicysteine, Dicysteine, Cystin, Cysteine disulfide, Gelucystine, L-Cystin, Oxidized L-cysteine, 1-Cystine, Cystine,d, Cystine D-form, D-Cystine, L-Cysteine disulfide, (-)-Cystine, Cystine (L)-, Cystine, D-, Cystine, L-, Cystine (VAN)

Molecular Formula:	C₆H₁₂N₂O₄S₂	Molecular Weight:	240.300480 [g/mol]
H-Bond Donor:	4	H-Bond Acceptor:	6

InChIKey: LEVWYRKDKASIDU-IMJSIDKUSA-N

• L-Leucine

IUPAC Name: (2S)-2-amino-4-methylpentanoic acid | CAS Registry Number: 61-90-5
Synonyms: leucine, L-leucine, (S)-Leucine, polyleucine, Leucinum, Leucin [German], L-leucin, (2S)-alpha-leucine, L-Leuzin, Leucine (VAN), 1lan, 1usk, Poly(L-leucine), (3H)Leucine, 14C-Leucine, Leucine (USP), LEUCINE, L-, L-Norvaline, 4-methyl-, Leucinum [INN-Latin], Leucine [USAN:INN]

Molecular Formula:	C₆H₁₃NO₂	Molecular Weight:	131.172920 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	3

InChIKey: ROHFNLRQFUQHCH-YFKPBYRVSA-N

• L-Thiazolidine-4-Carboxylicacid

IUPAC Name: (4R)-1,3-thiazolidine-4-carboxylic acid | CAS Registry Number: 34592-47-7
Synonyms: L-Thioproline, L-Thiaproline, Thiazolidinecarboxylic acid, C4H7NO2S, CCRIS 3646, T27502_ALDRICH, L-Thiazolidine-4-carboxylic acid, T0631_SIGMA, (R)-4-Thiazolidinecarboxylic acid, 4-Thiazolidinecarboxylic acid, L-, L-4-Thiazolidinecarboxylic acid, (4R)-4-Thiazolidinecarboxylic acid, (R)-Thiazolidine-4-carboxylic acid, EINECS 252-106-3, 4-Thiazolidinecarboxylic acid, (R)-, 4-Thiazolidinecarboxylic acid, (4R)-, (R)-(-)-4-Thiazolidinecarboxylic acid, SBB015063, NCGC00166087-01, LS-151163

Molecular Formula:	C₄H₇NO₂S	Molecular Weight:	133.168880 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	3

InChIKey: DZLNHFMRPBPULJ-VKHMYHEASA-N

• L-Tyrosine

IUPAC Name: (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid | CAS Registry Number: 60-18-4
Synonyms: L-tyrosine, tyrosine, p-Tyrosine, L-p-Tyrosine, (S)-Tyrosine, D-tyrosine, Poly-L-tyrosine, Tyrosine, L-, Tyrosinum [Latin], Tyrosine (VAN), DL-Tyrosine, L-Tyrosin, Tirosina [Spanish], 2csm, 4-Hydroxy-L-phenylalanine, L-Tyrosine, monomer, L-Tyrosine (JAN), Tyrosine [USAN:INN], Free-Form L-Tyrosine, L-Tyrosine (9CI)

Molecular Formula:	C₉H₁₁NO₃	Molecular Weight:	181.188540 [g/mol]
H-Bond Donor:	3	H-Bond Acceptor:	4

InChIKey: OUYCCCASQSFEME-QMMMGPOBSA-N